Hilti Aktiengesellschaft

Hilt Aktiengesellschaft

Bernd Ziegler

Varnim Goyal

Ralf Meixner

Bernd Heigl

Rainer Ontl

Klaus Hauser

Tobias Koeniger

Franz Huber

Dieter Profunser

Stefan Schmid

Holger Cecchin

Markus Holubarsch

Michael Göttlinger

Michael Brandner

Katharina Marsiglia

Kathrin Sax

Robert Stanger

Matthias Lepiorz

Moses Ender

David Klingen

Nora Martiny

Julian Harbaum

Eduard Sever

Thomas Thanner

Dragomir Ljubojevic

Thomas Mueller

Joachim Vedder

Stephan Krebs

Roland Schwab

Benno Verhaag

Hubert Ludwig

Roman Justus

Thomas Müller

Process for controlling a battery including energy storage cells, a controlling device, a sensor for detecting mechanical parameter or electrical parameter, a safety device, an interface for connecting the battery to an external device and electrical wiring. The process includes detecting parameter and eliminating the provision of electric energy from the energy storage cells, if a detected parameter reaches a predetermined threshold value. Battery including a energy storage cell, a controlling device, a sensor for detecting mechanical parameter or electrical parameter, an interface for connecting the battery to an external device, electrical wiring for transmitting electric energy between the at least one battery cell and the external device. The battery includes a safety device for eliminating the provision of electric energy from the energy storage cells, if a parameter detected by the sensor reaches a predetermined threshold value. System including a battery and an external device connectable to the battery.

Detecting mechanical stress acting upon a system

An apparatus contains an inertial body held by three electrical conductors along the three principal inertial axes, wherein a voltage is applied to each of the three electrical conductors and are configured such that when a predetermined acceleration threshold value for the inertial body is reached the conductivity of at least one electrical conductor is impaired such that the reaching of a predetermined threshold value is detectable by the voltage measuring device. A rechargeable battery having an apparatus for detecting a critical fall and a method involving detecting three voltages are also provided.

Apparatus for detecting a critical fall

A method for controlling a system including at least one battery having at least one energy storage cell and a power-tool, wherein the system includes at least one acceleration sensor for detecting at least one acceleration value in an X, Y or Z direction, a device for measuring a voltage and a device for discharging the at least one energy storage cell. A system including at least one battery having at least one energy storage cell and a power-tool.

Drop protection for a battery

Method for controlling and regulating a rechargeable battery having energy storage cells, control electronics, a voltage measurement device and a sensor device, wherein the sensor device and the energy storage cells are respectively connected to one another via at least one controllable switching element so that electrical energy can be conducted from the energy storage cells to the sensor device. The method includes: capturing a first voltage value of the first and second energy storage cells of the voltage measurement device, and adjusting the at least one switching element from a deactivation mode to an activation mode if the difference between the voltage value of the first energy storage cell and the voltage value of the second energy storage cell reaches a predetermined threshold value, in order to conduct electrical voltage from the energy storage cell with the higher voltage value to the sensor device.

Method for controlling and regulating a rechargeable battery

Pouch cell having a positive contact lug and a negative contact lug, in which contact lugs electrical contact can be made with the pouch cell pouch cell and the pouch cell can be charged and discharged in this way, wherein the pouch cell is of planar design and has a flat cell surface which extends parallel in relation to the positive contact lug and the negative contact lug, wherein the positive contact lug has an upper positive connecting element and a lower positive connecting element, which positive connecting elements are arranged on opposite sides of the positive contact lug, and the negative contact lug has an upper negative connecting element and a lower negative connecting element, which negative connecting elements are arranged on opposite sides of the negative contact lug.

Pouch cell stack

A method for controlling a system including a power-tool and a battery having energy storage cells, wherein the system includes an acceleration sensor, a piezoelectric sensor, a controlling device, signal transmitter and a device for measuring a voltage. Method includes the steps: A system for carrying out the method is also provided.

Sensor to detect a mechanical stress on the battery pack

A shock absorbing device for a rechargeable battery, in particular for supplying a machine tool with electrical energy, wherein the rechargeable battery includes a housing for accommodating at least one energy storage cell. The shock absorbing device includes at least one shock absorbing element for absorbing shock energy exerted on the housing of the rechargeable battery.

Drop protection system for rechargeable batteries

Pouch cell having a positive contact region and a negative contact region, by which contact regions electrical contact can be made with the pouch cell and the pouch cell can be charged and discharged in this way, wherein the pouch cell is of planar design and has a cell top side as well as a cell bottom side which is situated opposite the cell top side, wherein the positive contact region is located exclusively on the cell top side and the negative contact region is located exclusively on the cell bottom side, or vice versa.

Pouch cell and stack

The battery unit according to the invention for a handheld machine tool comprises a number of battery cells, with at least one of the battery cells being embodied as an isolation battery cell, and showing a fire protection jacket comprising an intumescent material. The fire protection jacket surrounds the isolation battery cell at least partially such that the isolation battery cell is surrounded by the fire protection jacket at a predetermined temperature such that the isolation battery cell is thermally insulated.

Battery for a handheld machine tool and method for producing a battery for a handheld machine tool

A hand-held power tool, in particular a hammer drill or combination hammer, is disclosed. The power tool includes a tool housing which has a receiving recess designed to replaceably receive a storage battery or a power supply unit. The hand-held power tool further includes an electric drive motor having a cooling fan and a first vent portion which is located on the tool housing outside the receiving recess and through which a volume flow generated by the cooling fan can be guided. The tool housing has a second vent portion which is different from the first vent portion and which is located in the receiving recess and through which the volume flow generated by the cooling fan can be at least partially guided.

Handheld power tool, fanless power supply unit and tool system

A rechargeable tool battery (), in particular for supplying a hand-held power tool (), including a rechargeable tool battery housing (), inside which a secondary cell battery () having a nominal cell voltage (UN) is situated, the rechargeable tool battery () including a rechargeable battery DC-DC converter (), integrated into the rechargeable tool battery housing (), which is electrically connected to the secondary cell battery (), and is designed for raising the nominal cell voltage (UN) to a supply voltage (UV) which is tappable at a rechargeable tool battery terminal () of the rechargeable tool battery ().

Rechargeable tool battery, mains-operable hand-held power tool, and tool system

A method to monitor the current of a handheld power tool () operated by a battery (), by at least one counter (), includes the following steps:

Method and device to monitor the current of a battery-operated handheld power tool

A vacuum cleaner () having a housing (') and at least one battery () arranged therein, and/or at least one battery compartment () that serves to hold at least one battery (). The vacuum cleaner () has a vacuum generator () that serves to generate an air stream along a flow path (A), wherein the at least one battery () or the at least one battery compartment () is arranged in said flow path (A).

Vacuum cleaner with a temperature-controlled battery

A mobile electric appliance is disclosed. The mobile electric appliance includes at least one battery bay for accommodating a battery with at least one voltage-generating cell and a battery-side charge status indicator, an electrical consumer, a power connector, as well as a charging device for charging the at least one battery. In addition, the mobile electric appliance includes means for detecting the charge status of the at least one battery and a device-side charge status indicator arranged on the mobile electric appliance. The battery may also include an interface, which is prepared to relay the charge status determined to an external processing unit.

Growing community of inventors

Hiltenfingen, Germany

Bernd Ziegler